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Using the Discriminant for Quadratic Equations

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How to use the discriminant for quadratic equations?

The following diagram shows how to use the discriminant of a quadratic equation to tell what types of roots for the equation. Scroll down the page for more examples and solutions on how to use the discriminant.


Using the Discriminant for Quadratic Equations
Using the Discriminant to determine the number of REAL solutions to a quadratic equation.

Using the Discriminant in a Quadratic Equation
The Discriminant is a useful tool to understand the nature of the roots (how many, what type) of a quadratic equation.
Discriminant Quadratic Equations
Video explains the discriminant and types of roots to a quadratic equation

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